Discrimination of high-temperature Daqu Baijiu by random forest algorithm

MethodSortAccuracy rate (%)Number of errors
Training setPrediction setTraining setPrediction set
UV-VISSauce10093.9402
Mixed10093.3302
Strong10096.6701
Total97.2462.37533
HBT_Zn2+ UV-VISSauce10010000
Mixed10010000
Strong10010000
Total10010000

UV-VIS: ultraviolet-visible spectroscopy; HBT: 2-(2-hydroxyphenyl) benzothiazole